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need help with my code

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when i use the (reply = myScanner.findInLine(".").charAt(0);) method i get the following error message 

Exception in thread "main" java.lang.NullPointerException 
        at Ifexercise1a.main(Ifexercise1a.java:18) 

and i am sure i wrote it write cause i tried copying and paste it from another prog which is working fine, i am using eclipse and i don`t know if it`s a bug in eclipse or something wrong in the class itself.

the complete code is 

import java.util.Scanner; 

public class Ifexercise1a { 

        public static void main(String[] args) { 
                 
                Scanner myScanner = new Scanner(System.in); 
                int age; 
                double price; 
                char reply; 
                 
                System.out.println("how old are you?"); 
                age = myScanner.nextInt(); 
                 
                System.out.println("you have a coupon? (Y/N)"); 
                reply = myScanner.findInLine(".").charAt(0); 
                 
                if(age <= 12 || age > 65){ 
                        price = 5.25; 
                }else{ 
                        price = 9.25; 
                } 
            if (reply == 'y' || reply == 'Y'){ 
                    price-=2.00; 
            } 
                  System.out.println("you will pay $" + price);   
                } 
         
         
} 

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need help with my code Karim omar <karimyousrymohamedomar@gmail.com> - 2016-12-12 08:19 -0800
  Re: need help with my code Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2016-12-12 15:16 -0600

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